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Ծ௨՟OSSΛͬͨ
ϦΞϧ௨՟ૹۚͷ࣮ݱ
Junichi Okamura
@Enterprise APIs Hack-Night #4 2016.4.21
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Who am I?
• Junichi Okamura @benzookapi
• API Lover/Midnight Creator/TDD (Talk Driven Development)
Advocator
• Rock/Wine/DQ/JOJO/I18N/Marketing/Payment
• Scala/Java/Ruby/Python/Node.js/PHP/Mobile/Unity/../ppt
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͍ͭͷਖ਼
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Today’s Topic
Ծ௨՟OSS
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Ծ௨՟ͱʁ
๏ఆ௨՟ʹରͯ͠ಛఆͷࠃՈʹΑΔՁͷอূΛ࣋ͨͳ͍௨՟
ʢBy Wikipedia ઌੜʣ
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๏ఆ௨՟ͱʁ
੫ۚۚͳͲΛؚΉۚમ࠴ͷڧ੍తͳหࡁखஈͱͯ͠ɺڧ੍௨༻
ྗ͕๏తʹೝΊΒΕ͍ͯΔ௨՟ͷ͜ͱɻͭ·Γɺ๏ఆ௨՟ʹΑΔ࠴
หࡁΛڋ൱͢Δ͜ͱҰൠʹͰ͖ͳ͍ɻݱࡏͷຊͰɺຊۜߦ
͕ൃߦ͢Δຊۜߦ݊ɺ͓Αͼฎہ͕͕͠ൃߦ͢Δ՟ฎʢߗ
՟ʣͷΈ͕๏ఆ௨՟Ͱ͋Δɻ
ʢBy Wikipedia ઌੜʣ
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ͭ·Γ
Ծ௨՟ͱࠃՈʹن੍͞Εͳ͍௨՟Ͱ͋Δ
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Ծ௨՟ͷྫ
BitCoin ʢBitcoinϒϩοΫνΣʔϯ PoWʣ
counterparts ʢBitcoinϒϩοΫνΣʔϯ PoWʣ
Omni ʢBitcoinϒϩοΫνΣʔϯ PoWʣ
SideChains ʢBitcoinϒϩοΫνΣʔϯʴ PoW/PoSʣ
EthereumʢಠࣗϒϩοΫνΣʔϯɹPoW/PoSʣ
BitSharesʢಠࣗϒϩοΫνΣʔϯ DPoSʣ
RippleʢಠࣗϒϩοΫνΣʔϯʴ ɹRipple Consensus ʣ
StellarʢಠࣗϒϩοΫνΣʔϯʴ SCPʣ
Group1:
Group2:
Group3:
※BitCoinҎ֎૯শͯ͠BitCoin2.0Έ͍ͨʹݺΕ·͢
͍͍ͩͨ200͙Β͍͋ΔͱݴΘΕ·͢
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Group͚ͷج४
ϒϩοΫνΣʔϯʹݩாʢLedgerʣ
ɹBitCoin͕͢Ͱʹ࣋ͬͯΔͷ
ɹBitCoinͷͷʹԣʹͭͳ͛Δͷ
ɹBitCoinͱผʹ࡞Δͷ
औҾͷঝೝ
ɹBitCoinͷPoWʢProof Of Workʣʹಇ͘ͷ͕͑Β͍ʢ͍͚Ͳฏʣ
ɹͦͷଞͷPoSʢProof Of Stateʣʹ࣋ͬͯΔͷ͕͑Β͍ʢૣ͍͚Ͳෆฏʣ
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Group1:BitCoinͷதʢ্ʣ
BitCoinͷݩாʢLedgerʣ্ʹ͔͍ͬͬͯΔͷ
BitCoinʹػೳΛՃ͍ͯ͠Δ͜ͱ͕ଟ͍ʢಠࣗ௨՟ൃߦͳͲʣ
BitCoinͷಛੑΛҾ͖ܧ͙ʢPoWͷ͞ͳͲʣੈͷԾ௨՟΄΅͜Ε
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Group2:BitCoinͷ֎
BitCoinͷݩாʢLedgerʣͷ֎ʹ৽ͨʹࣅͨΑ͏ͳͷΛ࡞Δ
௨՟Ҏ֎ͷػೳΛࢹʹೖΕ͍ͯΔ͜ͱ͕ଟ͍ʢεϚʔτίϯτϥΫ
τͳͲʣ
BitCoinͷجຊతͳಛੑҾ͖ܧ͙͕ঝೝํ๏Λม͑ͨΓɺBitCoinͱԣ
ʹͭͳ͛ΔͳͲͯ͠େ෯ͳվળΛࢼΈΔʢSideChainͳͲʣ
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Group3:BitCoin
BitCoinͷϒϩοΫνΣʔϯͱผͷίϯηϓτ
͛͗ͨ͢෩࿊ෑΛૹۚͷརศੑͱ͍͏ݱ࣮՝ʹϑΥʔΧε͠͠
͍ͯΔ
BitCoinͷಛੑҾ͖ܧ͕ͳ͍ɺϒϩοΫνΣʔϯ͕ܝ͛ͨDecentrized
Λ͋Δఔۂ͛ͯͰ࣮༻ੑΛࢦ͢ʢ৽͍͠Consensusʣ
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ຊऔΓ্͍͛ͨͷ
Group3:
Ripple Stellar
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No content
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Rippleͱʁ
Ripple Inc. ʹΑͬͯ։ൃ͕ߦΘΕ͍ͯΔࢄܕாٕज़Λར༻ͨ͠ଈ࣌άϩεܾࡁγε
ςϜɺ ֎ࠃҝସɾૹۚωοτϫʔΫ
ίϯηϯαεɾϨδϟʔͱXRPͱݺΕΔωΠςΟϒ௨՟Λ༻͍ΔΦʔϓϯιʔεͷΠ
ϯλʔωοτɾϓϩτίϧɺϦοϓϧɾτϥϯβΫγϣϯɾϓϩτίϧʢRTXPʣ·
ͨϦοϓϧɾϓϩτίϧͱݺΕΔ
ʢBy Wikipediaɹઌੜʣ
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Ripple developer site
https://ripple.com/build/
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ۜߦ->Ripple·Ͱͷมભ
By Ripple Inc.
๏ఆ௨՟ͱ෦௨՟ͷऔҾʹFXࣗମΛ
แ͍ͯ͠Δͷ͕BitCoinͱେ͖͘ҧ͏
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Rippleͷಛ
ۜߦۀޮԽͳͲͷtoB͚
Google͕ग़ࢿ
ݩʑOSSϓϩδΣΫτ͕ͩͬͨݱࡏҰ෦Λআ͖ඇެ։
ܾࡁϓϥοτϑΥʔϜͱͯ͠औҾۀऀʢϚʔέοτϝΠΧʔʣΛࣗͷ
ωοτϫʔΫʹࡌͤΔํʹϏδωεγϑτʢPayPalҙࣝʣ
RippleʹΑΔதԝूݖ৭͕ʢগ͠ʣڧ·͍ͬͯΔ
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ͦ͜ͰRippleͷ࢝ऀ
ͬͱΦʔϓϯͰࢢຽతͳૹۚωοτϫʔΫΛ࡞Γ͍ͨʂ
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No content
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Stellarͱʁ
Rippleͷ࢝ऀʢͪͳΈʹMt.Goxͷ࢝ऀʣ͕࢝ΊͨRippleͷforkϓ
ϩδΣΫτʢNPOʣ
ػೳతʹࣅ͍ͯΔ͕ɺݸਓؒૹۚͳͲͷtoCʹϑΥʔΧε
SCPʢStellar Consensus Protocolʣͱ͍͏ಠࣗίϯηϯαε
શOSSͰୈࡾऀ͕ಠࣗωοτϫʔΫߏஙՄೳ
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Stellar developer site
https://www.stellar.org/developers/
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Stellarͷߏ
https://www.stellar.org/developers/learn/
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Stellarͷίϯϙʔωϯτ
Core: StellarͷԾ௨՟ʢLumenʣͷωοτϫʔΫɻCoreಉ͕࢜ࢄா
ͱͯ͠ଘࡏ͠ɺCoreͷͭͳ͕Γ͕StellarͷωοτϫʔΫʢϒϩοΫνΣʔ
ϯʣͱͳΔɻෳͷWallet͕CoreΛڞ༗ʢBitCoinΑΓޮతʣ
HorizonɿCorerͱWalletɺGatewayʢऔҾॴʣΛͭͳ͙APIϑϩϯτΤϯυ
SDKɿWalletͳͲͷΫϥΠΞϯτ࣮ͷͨΊͷϥΠϒϥϦɻAPIͰସՄೳ
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StellarͷAPI
https://www.stellar.org/developers/horizon/reference
៉ྷͳRESTful APIͰ͢
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·ͣ…
ςετωοτϫʔΫ͕͋ΔͷͰ৮ͬͯΈΔ͜ͱΛ͓קΊ͠·͢ʂ
https://www.stellar.org/developers/learn/get-started/test-net.html
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໘ന͍ػೳɿFind Payment Paths
Ripple͔ΒҾ͖ܧ͍Ͱ͍Δػೳ
ૹۚʢFXʣ͍ͨ͠௨՟ʹ࠷దͳPathʢGatewayʣΛఆ͠ɺ
ૹۚίετΛ҆͘͢Δ
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ঝೝϓϩτίϧɿSCP
https://www.stellar.org/papers/stellar-consensus-protocol.pdf
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RippleɺStellar͕ղܾ͢Δ͜ͱ
ίετ͕͔͔͍ͬͯΔૹۚɺ
ಛʹࠃࡍૹۚΛϩʔίετͰॠ࣌ʹߦ͏͜ͱ
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͜͏͍͏ͷ͕
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͜͏ͳΔ
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Stellar࣍ੈΛ୲͏OSS
ࠓContribute͢ΕώʔϩʔʹͳΕΔ͔ʁ
https://www.stellar.org/community/
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·ͱΊ
Disrupt࢝·͍ͬͯΔʂ
ڊਓͰ͋ͬͯݩ͘͢ΘΕΔͧʂ
ͦ͜ͷ܅ʹνϟϯε͋Δʂ
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Thank You
Junichi Okamura
@Enterprise APIs Hack-Night #4 2016.4.21